S&P 500 index
U.S. stocks slumped on Wednesday, as both the Dow Industrials and S&P 500 index are put on track for their worst session in seven weeks.
U.S. stocks are at a record high and investors are concerned that steep valuations may mean a correction is overdue.
The S&P 500 index had its biggest one-day drop in almost three months on Thursday as investors fled riskier assets, with technology stocks leading the charge.
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